Application of thin films of SnO2 and SnO2:Ru as propane sensors
Keywords:
Thin films, Semiconductor Oxides, Tin Oxide, Propane Gas Sensors.Abstract
In this work we report the sensing properties of undoped and ruthenium-doped tin oxide thin films (SnO2, SnO2:Ru) with different thicknesses, in a controlled atmosphere of propane gas (C3H8) at different operation temperatures. The films were deposited onto soda-lime glass substrates by the spray pyrolysis technique at different deposition temperatures, namely, 300, 350, 400, and 450°C. All the films were annealed in vacuum at 400°C during 1 h in order to stabilize the surface physical characteristics. The sensing properties of the films were characterized by the surface electrical resistance ratio in a C3H8 atmosphere, and air as reference. Maximum sensitivities, on the order of 1.4 and 7.4 were obtained for undoped SnO2, and, SnO2:Ru thin films, respectively.References
. T. Seiyama, A. Kato, K. Fujiishi, M. Nagatani, Analytical Chemistry. 34,1502(1962).
. P. Mitra, A.P. Chartterjee, H.S. Maiti, Materials Letters 35, 33 (1998).
. K. Jim, H. Do Sang, S. Ishwar, L. H. Doek, W. J. Suk, Sensors and actuators B 107, 825 (2005).
. P.T. Moseley, Solid State Gas Sensors, Bristol (1987).
. M.J. Madau, S.R. Morrison, Chemical Sensing with Solid State Devices, Academic Press (1989).
. I.A. Myasniko, V.Y. Suckarev, L.Y. Kupriyanov, S.A. Zavyalov, Semiconductor Sensors in Physico-Chemical Studies Handbook of Sensors and Actuators 4, Elsevier, Amsterdam (1996).
. P. Mitra, A.P. Chartterjee, H.S. Maiti, Materials Letters 35, 33 (1998).
. K. Jim, H. Do Sang, S. Ishwar, L. H. Doek, W. J. Suk, Sensors and actuators B 107, 825 (2005).
. V.A Chaudhary, I.S. Mulla, K. Vijayamohanan, Sensors and Actuators B 50, 45 (1998)
. P. Menini, F. Parret, M. Gerrero, K. Soulanica, L. Erades, A. Maisonnat B. Chaudret, Sensors and Actuators B 103, 111 (2004).
. A.R. Phani, S. Manorama, V.J. Rao, Material Chemistry and Physics 58, 101 (1999).
. R.S. Niranjan, V.A. Chaudhary, S.R. Sainkar, K.R. Patil, K. Vijayamohanan, I.S. Mulla, Sensors and Actuators B 79, 132 (2001).
. S.V. Manorama, C.V. Gopal Redy, V.J. Rao, Applied Surface Science 174,93 (2001).
. V. A.Chaudhary, I. S. Mulla, K. Vijayamohanan, Sensors and Actuators B 50, 45(1998).
Downloads
Published
Issue
Section
License
©2025 by the authors; licensee SMCTSM, Mexico. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
